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The resistance per unit length of the wi...

The resistance per unit length of the wires in segments AB, BC, CD, and AD are the same. The magnetic field due to the current at point O is

A

`(3mu_0l)/(4sqrt5pia)`

B

`(3mu_0l)/(sqrt5pia)`

C

`(mu_0l)/(2sqrt5pia)`

D

none of the above

Text Solution

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The correct Answer is:
A
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